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Modulation Scheme for Wireless Optical Intensity Channel based Spatial Coding

机译：基于无线光强度信道的空间编码的调制方案

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摘要

A simple channel model of wireless optical links based spatial coding is described and two basic channel constraints are outlined. For representing the spatial patterns as signal points, a signal space based 2-D orthonormal basis functions is defined. After that, critical measures of performance are also defined as metrics for comparing candidate modulation schemes. Then three candidate modulation schemes exploiting spatial dimensions are proposed, which are spatial on-off keying, spatial pulse position modulation and spatial quadrature amplitude modulation schemes. At last, the three modulation schemes are compared by power efficiency and bandwidth efficiency. The appropriateness of each scheme is also discussed.

机译：描述了基于空间编码的无线光链路的简单信道模型，并概述了两个基本信道约束。为了将空间图案表示为信号点，定义了基于信号空间的二维正交基函数。之后，性能的关键指标也被定义为用于比较候选调制方案的指标。然后提出了三种利用空间尺度的候选调制方案，即空间开关键控，空间脉冲位置调制和空间正交幅度调制方案。最后，通过功率效率和带宽效率比较了这三种调制方案。还讨论了每种方案的适用性。

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来源
《Free-Space Laser Communications VI》|2006年|P.63041X.1-63041X.11|共11页
会议地点 San DiegoCA(US)
作者
Weiqing Pan; Liren Liu; Jiming Wang; Dong Zhao;
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作者单位

Shanghai Institute of Optics Mechanics, Chinese Academy of Sciences, P.O.Box 800-211, Shanghai 201800, P.R.China;

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会议组织
原文格式 PDF
正文语种 eng
中图分类光波通信、激光通信;
关键词
spatial modulation; spatial pattern; wireless optical communication; 2-D orthonormal basis function;

机译：空间调制空间模式无线光通信二维正交基函数;

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Modulation Scheme for Wireless Optical Intensity Channel based Spatial Coding

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